diff options
| -rw-r--r-- | host_vars/ritchie/prometheus.yml | 35 | ||||
| -rw-r--r-- | playbook.yml | 6 | ||||
| -rw-r--r-- | roles/prometheus-node-exporter/README.md | 3 | ||||
| -rw-r--r-- | roles/prometheus-node-exporter/tasks/main.yml | 7 | ||||
| -rw-r--r-- | roles/prometheus/README.md | 13 | ||||
| -rw-r--r-- | roles/prometheus/defaults/main.yml | 45 | ||||
| -rw-r--r-- | roles/prometheus/handlers/main.yml | 14 | ||||
| -rw-r--r-- | roles/prometheus/tasks/main.yml | 33 |
8 files changed, 156 insertions, 0 deletions
diff --git a/host_vars/ritchie/prometheus.yml b/host_vars/ritchie/prometheus.yml new file mode 100644 index 0000000..63cef52 --- /dev/null +++ b/host_vars/ritchie/prometheus.yml @@ -0,0 +1,35 @@ +--- +prometheus_configuration: + global: + scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute. + evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute. + # scrape_timeout is set to the global default (10s). + + # Alertmanager configuration + alerting: + alertmanagers: + - static_configs: + - targets: [] + + rule_files: + # - "first_rules.yml" + # - "second_rules.yml" + + scrape_configs: + # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. + - job_name: prometheus + + # Override the global default and scrape targets from this job every 5 seconds. + scrape_interval: 5s + scrape_timeout: 5s + + # metrics_path defaults to '/metrics' + # scheme defaults to 'http'. + + static_configs: + - targets: ['localhost:9090'] + + - job_name: node + # Scrape node exporters on all hosts + static_configs: + - targets: "{{ hostvars.values() | map(attribute='ansible_wg0.ipv4.address') | map('regex_replace', '^(.*)$', '\\1:9100') | list }}" diff --git a/playbook.yml b/playbook.yml index 83389f4..1ac7637 100644 --- a/playbook.yml +++ b/playbook.yml @@ -4,8 +4,14 @@ - common - jumpcloud - ufw + - prometheus-node-exporter - wireguard +- name: Deploy our monitoring stack + hosts: ritchie + roles: + - prometheus + - name: Deploy nginx to hosts hosts: nginx roles: diff --git a/roles/prometheus-node-exporter/README.md b/roles/prometheus-node-exporter/README.md new file mode 100644 index 0000000..97ed275 --- /dev/null +++ b/roles/prometheus-node-exporter/README.md @@ -0,0 +1,3 @@ +# Role "prometheus-node-exporter" + +Installs prometheus-node-exporter on target hosts. diff --git a/roles/prometheus-node-exporter/tasks/main.yml b/roles/prometheus-node-exporter/tasks/main.yml new file mode 100644 index 0000000..d28eeb7 --- /dev/null +++ b/roles/prometheus-node-exporter/tasks/main.yml @@ -0,0 +1,7 @@ +--- +- name: install prometheus-node-exporter + package: + name: prometheus-node-exporter + state: present + tags: + - role::prometheus-node-exporter diff --git a/roles/prometheus/README.md b/roles/prometheus/README.md new file mode 100644 index 0000000..febe029 --- /dev/null +++ b/roles/prometheus/README.md @@ -0,0 +1,13 @@ +# Role "prometheus" + +Installs and configured Prometheus on target servers. + + +## Variables + +- `prometheus_cmdline_options` configures arguments to be added + to the prometheus command line, and changing it will result in + a restart. + +- `prometheus_configuration` is the prometheus configuration, serialized to + YAML by Ansible. If unset, the default Prometheus configuration is used. diff --git a/roles/prometheus/defaults/main.yml b/roles/prometheus/defaults/main.yml new file mode 100644 index 0000000..fbefe91 --- /dev/null +++ b/roles/prometheus/defaults/main.yml @@ -0,0 +1,45 @@ +--- +# Default Prometheus configuration sample +prometheus_configuration: + global: + scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute. + evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute. + # scrape_timeout is set to the global default (10s). + + # Attach these labels to any time series or alerts when communicating with + # external systems (federation, remote storage, Alertmanager). + external_labels: + monitor: 'example' + + # Alertmanager configuration + alerting: + alertmanagers: + - static_configs: + - targets: ['localhost:9093'] + + # Load rules once and periodically evaluate them according to the global 'evaluation_interval'. + rule_files: + # - "first_rules.yml" + # - "second_rules.yml" + + # A scrape configuration containing exactly one endpoint to scrape: + # Here it's Prometheus itself. + scrape_configs: + # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config. + - job_name: 'prometheus' + + # Override the global default and scrape targets from this job every 5 seconds. + scrape_interval: 5s + scrape_timeout: 5s + + # metrics_path defaults to '/metrics' + # scheme defaults to 'http'. + + static_configs: + - targets: ['localhost:9090'] + + - job_name: node + # If prometheus-node-exporter is installed, grab stats about the local + # machine by default. + static_configs: + - targets: ['localhost:9100'] diff --git a/roles/prometheus/handlers/main.yml b/roles/prometheus/handlers/main.yml new file mode 100644 index 0000000..b19a054 --- /dev/null +++ b/roles/prometheus/handlers/main.yml @@ -0,0 +1,14 @@ +--- +- name: reload the prometheus service + service: + name: prometheus + state: reloaded + tags: + - role::prometheus + +- name: restart the prometheus service + service: + name: prometheus + state: restarted + tags: + - role::prometheus diff --git a/roles/prometheus/tasks/main.yml b/roles/prometheus/tasks/main.yml new file mode 100644 index 0000000..08aff38 --- /dev/null +++ b/roles/prometheus/tasks/main.yml @@ -0,0 +1,33 @@ +--- +- name: install prometheus + package: + name: prometheus + state: present + tags: + - role::prometheus + +- name: configure prometheus command line options + lineinfile: + path: /etc/default/prometheus + regexp: ^ARGS.* + line: ARGS="{{ prometheus_cmdline_options }}" + tags: + - role::prometheus + when: + - prometheus_cmdline_options is defined + notify: + - restart the prometheus service + +- name: configure prometheus + copy: + content: | + # Ansible managed + {{ prometheus_configuration | to_nice_yaml }} + dest: /etc/prometheus/prometheus.yml + owner: prometheus + group: prometheus + mode: 0400 + tags: + - role::prometheus + notify: + - reload the prometheus service |